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All the Problems in the World ; ... Because There's No Such Thing as a Stupid Question

The Independent on Sunday (London, England), May 27, 2007 | Article details

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All the Problems in the World ; ... Because There's No Such Thing as a Stupid Question


What's the hardest substance on earth?

John Dodd

They are forever, a girl's best friend, and, as any pupil will tell you, diamonds are also the hardest substance on earth, right? Well, no - at least not anymore.

Two years ago, a team of physicists at the University of Bayreuth, in Germany, replaced "ice" with the slightly less cool Aggregated Carbon Nanorods (ACNR) as the toughest material known to man.

ACNR, which is 0.3 per cent denser than diamond, was created in a lab by interlocking tiny "nanorods" of carbon. The process involved compressing superstrong carbon molecules called buckyballs to 200 times atmospheric pressure, while heating …

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